Starknet v0.12.2 update

[tomek0123456789]

Closes #1149
Closes #1155
Closes #1159

Introduced changes

• added two methods to GatewayClient - get_public_key and get_signature
• get_state_update now accepts additional parameter - include_block
• changed old_root, new_root (BlockStateUpdateSchema) and root (state_root in StarknetBlockSchema) to be Felts

• This PR contains breaking changes

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: -0.49% ⚠️

Comparison is base (aefc710) 96.99% compared to head (c106bd6) 96.51%.

Additional details and impacted files

@@               Coverage Diff               @@
##           development    #1152      +/-   ##
===============================================
- Coverage        96.99%   96.51%   -0.49%     
===============================================
  Files               92       92              
  Lines             4433     4478      +45     
===============================================
+ Hits              4300     4322      +22     
- Misses             133      156      +23     

Files Changed	Coverage Δ
starknet_py/net/client_models.py	100.00% <100.00%> (ø)
starknet_py/net/gateway_client.py	96.81% <100.00%> (+0.21%)	⬆️
starknet_py/net/schemas/gateway.py	99.09% <100.00%> (+0.37%)	⬆️
starknet_py/net/signer/test_stark_curve_signer.py	100.00% <100.00%> (ø)

... and 7 files with indirect coverage changes

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[drknzz]

Green checks in tests is what I like 😎 👍
The codecov got hit a bit though, would be good to do something about it before merging